Nonlinear Evolution Of A Disturbance In An Unbounded Viscous Fluid With Uniform Shear
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Nonlinear Evolution Of A Disturbance In An Unbounded Viscous Fluid With Uniform Shear
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Author : Robert G. Deissler
language : en
Publisher:
Release Date : 1973
Nonlinear Evolution Of A Disturbance In An Unbounded Viscous Fluid With Uniform Shear written by Robert G. Deissler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Shear flow categories.
The evolution of a disturbance in the presence of a uniform mean velocity gradient is calculated by a power-series solution of the incompressible Navier-Stokes equations. Terms through those in time cubed are retained in the solution. For the initial condition a three-dimensional cosine distribution with two harmonic terms is assumed. The nonlinear interaction of these harmonic terms produces new harmonics which in turn interact. For large velocity gradients the energy of the disturbance can grow with time. The results shed some light on the maintenance or growth of turbulence in a shear flow.
Nonlinear Decay Of A Disturbance In An Unbounded Viscous Fluid
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Author : Robert G. Deissler
language : en
Publisher:
Release Date : 1968
Nonlinear Decay Of A Disturbance In An Unbounded Viscous Fluid written by Robert G. Deissler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Heat categories.
Nasa Technical Note
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Author :
language : en
Publisher:
Release Date : 1973
Nasa Technical Note written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Aeronautics categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1991
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Aeronautics categories.
Applied Mechanics Reviews
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Author :
language : en
Publisher:
Release Date : 1973
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Mechanics, Applied categories.
Nonlinear Decay Of A Disturbance In An Unbound Viscous Fluid
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Author : United States. National Aeronautics and Space Administration
language : en
Publisher:
Release Date : 1968
Nonlinear Decay Of A Disturbance In An Unbound Viscous Fluid written by United States. National Aeronautics and Space Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
Turbulent Fluid Motion
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Author : R. Deissler
language : en
Publisher: CRC Press
Release Date : 2020-09-29
Turbulent Fluid Motion written by R. Deissler and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-29 with Technology & Engineering categories.
This comprehensive book is based on the Navier-Stokes and other continuum equations for fluids. It interprets the analytical and numerical solutions of the equations of fluid motion. Topics included are turbulence, and how, why, and where it occurs; mathematical apparatus used for the representation and study of turbulence; continuum equations used for the analysis of turbulence; ensemble, time, and space averages as they are applied to turbulent quantities; the closure problem of the averaged equations and possible closure schemes; Fourier analysis and the spectral form of the continuum equations, both averaged and unaveraged; nonlinear dynamics and chaos theory.
Government Reports Announcements
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Author :
language : en
Publisher:
Release Date : 1973
Government Reports Announcements written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Technology categories.
The Spectrum Of The Final Decay Of Localized Disturbances In A Viscous Fluid
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Author : Hans J. Lugt
language : en
Publisher:
Release Date : 1968
The Spectrum Of The Final Decay Of Localized Disturbances In A Viscous Fluid written by Hans J. Lugt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
Based on previous work of Batchelor and Phillips it is shown that in an unbounded viscous fluid any decaying localized disturbance with a negligible nonlinear inertial force consists of a spectrum of dissipating spherical vortices. All these vortices can be derived from decaying multipoles. Such disturbances are characterized by a vorticity field which originates from a point source of vorticity and vanishes exponentially far away from its center. The result has been obtained by a Taylor-series expansion of the vorticity about the origin in a wave-number space. Vorticity fields which are produced in an extended region and over a finite period of time can be described by superposition. An example is given for decaying axisymmetric spherical discontinuity surfaces. (Author).
Government Reports Index
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Author :
language : en
Publisher:
Release Date : 1973
Government Reports Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Government publications categories.